- 11 - under section 280F, and strict substantiation is therefore required. Sec. 274(d). No deduction is allowed for any travel or transportation expense unless the taxpayer substantiates by adequate records or by sufficient evidence corroborating the taxpayer’s own statement the amount of the expense, the mileage for each business use of the automobile and the total mileage for all use of the automobile during the taxable period, the date of the business use, and the business purpose for the use. Sec. 1.274-5T(b)(6), Temporary Income Tax Regs., 50 Fed. Reg. 46016 (Nov. 6, 1985). Adequate records include the maintenance of an account book, diary, log, statement of expense, trip sheets, and/or other documentary evidence, which, in combination, are sufficient to establish each element of expenditure or use. Sec. 1.274-5T(c)(2)(i), Temporary Income Tax Regs., 50 Fed. Reg. 46017 (Nov. 6, 1985). Taxpayers may use a standard mileage rate established by the Internal Revenue Service in lieu of substantiating the actual amount of the expenditure. See sec. 1.274-5(j)(2), Income Tax Regs. The standard mileage rate is generally multiplied by the number of business miles traveled. See Rev. Proc. 2002-61, 2002- 2 C.B. 616 (in effect for transportation expenses incurred during 2003). The use of the standard mileage rate establishes only the amount deemed expended with respect to the business use of a passenger automobile. Sec. 1.274-5(j)(2), Income Tax Regs. ThePage: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 NextLast modified: November 10, 2007